


| Focal Length | 21mm |
| Lens Mount | PL |
| Min.T-Stop | T2.1 |
| Aperture Range | T2.1-T22 |
| Flange Distance | 52 |
| Close Focus Distance (To CCD) | 0.28m/11in |
| Largest Supporting Formate | 46.5 (Full Frame) |
| Iris Ring | Manual (Rotation Angle 68 Degree) |
| Focusing Ring | Manual (Rotation Angle 270 Degree) |
| Outer Diameter | 80*87mm |
| Weight (approx) | 935g |
| Front Diameter | 80mm |
| Filter Size | M77 |
| Gear Pitch (Iris/Focusing) | 0.8m |
| Blades of Diaphragm | 16 |